From: Jeroen Groenewegen van der Weyden <groen692@grosc.com>
To: Tim Deegan <Tim.Deegan@citrix.com>
Cc: "Christoph.Egger@amd.com" <Christoph.Egger@amd.com>,
"xen-devel@lists.xensource.com" <xen-devel@lists.xensource.com>,
"Dong, Eddie" <eddie.dong@intel.com>
Subject: Re: [PATCH 20 of 20] n2 MSR handling and capability exposure
Date: Tue, 26 Jul 2011 15:33:57 +0200 [thread overview]
Message-ID: <4E2EC245.2030905@grosc.com> (raw)
In-Reply-To: <20110726114233.GJ8970@whitby.uk.xensource.com>
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Tim, This improved a lot. the domu does not become in-responsive
anymore. However, all four l2 guest are started. but 2 out of 4 are
hanging/in-responsive after 30 to 60 seconds.
L1 domu (sles11sp1)
-> seems to be ok
L2-1 propetary OS, seems to be ok
L2-2 propetary OS, seems to be ok
l2-3 sles10sp3, hanging/in-responsive
l2-4 sles10sp3, hanging/in-responsive
no degug/error messages in dmesg.
mfg,
jeroen
Op 26-7-2011 13:42, Tim Deegan schreef:
> At 12:46 +0200 on 26 Jul (1311684389), Jeroen Groenewegen van der Weyden wrote:
>> Here my input
> Thanks. Looks very similar to the bug I thought I fixed with my patch.
>
> VCPUs 1 and 3 are always at 0xa01a1c9d:<0f> 01 c2 eb 03 0f 01 c3
> which is probably this fragment of code from KVM's vmx_vcpu_run():
>
> /* Enter guest mode */
> "jne .Llaunched \n\t"
> __ex(ASM_VMX_VMLAUNCH) "\n\t"
> "jmp .Lkvm_vmx_return \n\t"
> ".Llaunched: " __ex(ASM_VMX_VMRESUME) "\n\t"
> ".Lkvm_vmx_return: "
>
> So, just like the case I saw, they're trying to VMLAUNCH a VMCS and
> failing. That should only fail if the VMCS is already launched.
>
> I think the reason they're _stuck_ is that error paths for VMLAUNCH and
> VMRESUME emulation are wrong; I can fix them up a little but I suspect
> that won't solve the problem; just change it from a hang to some other
> failure mode.
>
> Can you try the attached patch instead of the previous one?
>
> Tim.
>
>
>
> _______________________________________________
> Xen-devel mailing list
> Xen-devel@lists.xensource.com
> http://lists.xensource.com/xen-devel
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next prev parent reply other threads:[~2011-07-26 13:33 UTC|newest]
Thread overview: 65+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-06-09 8:25 [PATCH 00 of 20] Rebased Nested VMX v2 Eddie Dong
2011-06-09 8:25 ` [PATCH 01 of 20] pre-cleanup1: Extend nhvm_vmcx_guest_intercepts_trap to include errcode to Eddie Dong
2011-06-09 9:46 ` Christoph Egger
2011-06-09 8:25 ` [PATCH 02 of 20] pre-cleanup2: Move IDT_VECTORING processing code out of intr_assist Eddie Dong
2011-06-09 8:25 ` [PATCH 03 of 20] Add data structure for nestedvmx Eddie Dong
2011-06-09 8:25 ` [PATCH 04 of 20] Add APIs for nestedhvm_ops Eddie Dong
2011-07-08 7:42 ` vickywill
2011-07-08 7:43 ` vickywill
2011-06-09 8:25 ` [PATCH 05 of 20] Emulation of guest VMXON/OFF instruction Eddie Dong
2011-06-09 8:25 ` [PATCH 06 of 20] Define structure and access APIs for virtual VMCS Eddie Dong
2011-06-09 8:25 ` [PATCH 07 of 20] Emulation of guest vmptrld Eddie Dong
2011-06-09 8:25 ` [PATCH 08 of 20] Emulation of guest VMPTRST Eddie Dong
2011-06-09 8:25 ` [PATCH 09 of 20] Emulation of guest VMCLEAR Eddie Dong
2011-06-09 8:25 ` [PATCH 10 of 20] Emulation of guest VMWRITE Eddie Dong
2011-06-09 8:25 ` [PATCH 11 of 20] Emulation of guest VMREAD Eddie Dong
2011-06-09 8:25 ` [PATCH 12 of 20] Add APIs to switch n1/n2 VMCS Eddie Dong
2011-06-09 8:25 ` [PATCH 13 of 20] Emulation of VMRESUME/VMLAUNCH Eddie Dong
2011-06-09 8:25 ` [PATCH 14 of 20] Extend VMCS control fields for n2 guest Eddie Dong
2011-06-09 8:25 ` [PATCH 15 of 20] Switch shadow/virtual VMCS between n1/n2 guests Eddie Dong
2011-06-09 8:25 ` [PATCH 16 of 20] interrupt/exception handling for n2 guest Eddie Dong
2011-06-09 8:25 ` [PATCH 17 of 20] VM exit handler of n2-guest Eddie Dong
2011-06-09 8:25 ` [PATCH 18 of 20] Lazy FPU for n2 guest Eddie Dong
2011-06-09 8:25 ` [PATCH 19 of 20] Add VMXE bits in virtual CR4 Eddie Dong
2011-06-09 8:25 ` [PATCH 20 of 20] n2 MSR handling and capability exposure Eddie Dong
2011-06-13 8:27 ` Tim Deegan
2011-06-14 2:29 ` Dong, Eddie
2011-06-15 12:45 ` Tim Deegan
2011-06-20 6:31 ` Jeroen Groenewegen van der Weyden
2011-06-30 14:14 ` Jeroen Groenewegen van der Weyden
2011-07-01 9:01 ` Tim Deegan
2011-07-01 9:54 ` Christoph Egger
2011-07-01 10:11 ` Jeroen Groenewegen van der Weyden
2011-07-04 8:58 ` Tim Deegan
2011-07-04 9:58 ` Jeroen Groenewegen van der Weyden
2011-07-08 7:12 ` Jeroen Groenewegen van der Weyden
2011-07-18 15:41 ` Dong, Eddie
2011-07-19 13:59 ` Jeroen Groenewegen van der Weyden
2011-07-20 13:44 ` Dong, Eddie
2011-07-20 14:12 ` Jeroen Groenewegen van der Weyden
2011-07-25 14:08 ` Tim Deegan
2011-07-25 16:16 ` Tim Deegan
2011-07-26 7:15 ` Jeroen Groenewegen van der Weyden
2011-07-26 10:00 ` Tim Deegan
2011-07-26 10:11 ` Tim Deegan
2011-07-26 10:46 ` Jeroen Groenewegen van der Weyden
2011-07-26 11:42 ` Tim Deegan
2011-07-26 13:33 ` Jeroen Groenewegen van der Weyden [this message]
2011-07-26 14:21 ` Tim Deegan
2011-07-26 15:25 ` Jeroen Groenewegen van der Weyden
2011-07-26 15:48 ` Tim Deegan
2011-07-26 16:00 ` Jeroen Groenewegen van der Weyden
2011-07-26 16:08 ` Tim Deegan
2011-07-26 11:05 ` Jeroen Groenewegen van der Weyden
2011-06-09 10:13 ` [PATCH 00 of 20] Rebased Nested VMX v2 Christoph Egger
2011-06-13 9:24 ` Tim Deegan
2011-06-14 3:01 ` Dong, Eddie
2011-06-14 9:01 ` Tim Deegan
2011-06-14 7:43 ` Christoph Egger
2011-06-14 14:08 ` Dong, Eddie
-- strict thread matches above, loose matches on Subject: below --
2011-06-02 8:57 [PATCH 00 of 20] NestedVMX support Eddie Dong
2011-06-02 8:57 ` [PATCH 20 of 20] n2 MSR handling and capability exposure Eddie Dong
2011-06-02 15:07 ` Tim Deegan
2011-06-02 15:11 ` Tim Deegan
2011-06-02 19:20 ` Keir Fraser
2011-06-03 8:39 ` Dong, Eddie
2011-06-03 8:25 ` Dong, Eddie
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